関連する概念動画
04:01Factors Affecting Solubility
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
01:27Feedback Regulation of Calcium Concentration
Calcium is an essential signaling molecule required for various cellular functions. Calcium pumps and ion channels on cell and organellar membranes, such as those on the endoplasmic reticulum (ER), regulate calcium concentrations inside the cell. They remain closed, keeping the cytosolic calcium levels low at a resting state.
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
01:21Skeleton and Calcium Homeostasis
Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
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関連する実験動画
Updated: Jun 7, 2026
09:32
Direct Imaging of ER Calcium with Targeted-Esterase Induced Dye Loading (TED)
Published on: May 7, 2013
ERからカルシウムをリドックスする.
H Llewelyn Roderick1, Martin D Bootman
1Laboratory for Molecular Signalling, The Babraham Institute, Babraham, Cambridge, CB2 4AT, United Kingdom.
Cell
|January 18, 2005
まとめ
イノシトール1,4,5-トリスホスファート (InsP3) によって誘発されるカルシウム放出は,細胞機能に不可欠です. 新しい研究では,InsP3受容体がエンドプラズマ網膜によって調節されていることが明らかになりました.
科学分野:
- 細胞生物学 細胞生物学
- 分子生理学 分子生理学
- カルシウムシグナル伝達
背景:
- イノシトール1,4,5-トリスホスファート (InsP3) は,エンドプラズマ網膜 (ER) からのカルシウム放出を媒介し,基本的な細胞プロセスです.
- この信号伝達経路は,生物の生涯にわたって重要な細胞機能を調節する.
